[gtk+/wip/baedert/children: 34/54] widget: Check for containerness before calling container API



commit d3eb0b63d4297c92a93f42465943b1d7c3866c56
Author: Timm Bäder <mail baedert org>
Date:   Fri Nov 18 09:53:58 2016 +0100

    widget: Check for containerness before calling container API

 gtk/gtkwidget.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index e183e7b..eea9cb9 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -4027,8 +4027,11 @@ gtk_widget_unparent (GtkWidget *widget)
   if (_gtk_widget_is_toplevel (toplevel))
     _gtk_window_unset_focus_and_default (GTK_WINDOW (toplevel), widget);
 
-  if (gtk_container_get_focus_child (GTK_CONTAINER (priv->parent)) == widget)
-    gtk_container_set_focus_child (GTK_CONTAINER (priv->parent), NULL);
+  if (GTK_IS_CONTAINER (priv->parent))
+    {
+      if (gtk_container_get_focus_child (GTK_CONTAINER (priv->parent)) == widget)
+        gtk_container_set_focus_child (GTK_CONTAINER (priv->parent), NULL);
+    }
 
   if (_gtk_widget_is_drawable (priv->parent))
     gtk_widget_queue_draw_area (priv->parent,


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